NEW YORK (CBSNewYork) — A Con Edison manhole fire at the 34th Street-Penn Station stop led to major service disruptions or the No. 1, 2 and 3 trains Monday evening.

The subway disruption came the same day as the “summer of hell” began for long-distance commuters at Penn Station.

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Following the manhole fire, some southbound No. 1 trains only made it to 137th Street-City College from the Bronx. Some No. 2 trains were rerouted to the No. 5 line, and some No. 2 and 3 trains terminated at 96th Street or Times Square-42nd Street.

Some northbound No. 3 trains also terminated at Wall Street or Chambers Street upon coming in from Brooklyn.

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As of 9:15 p.m., regular service had resumed — but with delays. Customers were advised to take the A, C or E trains as an alternate route.

In an unrelated development, during the overnight hours this work week beginning Monday night, A and C trains – as well as B and D trains – will not run north of 59th Street-Columbus Circle due to Fastrack repairs. This leaves the No. 1 train as the only option for some uptown commuters.

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The unrelated “summer from hell” that began Monday required Long Island Rail Road, NJ TRANSIT and Amtrak riders to adjust their schedules as a two-month repair project began at Penn Station.